/ # mount /dev/block/mtdblock6 /efs -tvfat
mount /dev/block/mtdblock6 /efs -tvfat
mount: mounting /dev/block/mtdblock6 on /efs failed: Invalid argument
/ # mount /efs
mount /efs
/ # df -k
df -k
Filesystem           1K-blocks      Used Available Use% Mounted on
tmpfs                   176584        32    176552   0% /dev
/dev/block/mtdblock4    480768      2604    478164   1% /cache
/dev/block/platform/s3c-sdhci.0/by-name/media
                      13951332   6000516   7950816  43% /sdcard
/dev/block/mtdblock6      6912      1612      5300  23% /efs
/ # cat /proc/mtd
cat /proc/mtd
dev:    size   erasesize  name
mtd0: 00200000 00040000 "bootloader"
mtd1: 00140000 00040000 "misc"
mtd2: 00800000 00040000 "boot"
mtd3: 00800000 00040000 "recovery"
mtd4: 1d580000 00040000 "cache"
mtd5: 00d80000 00040000 "radio"
mtd6: 006c0000 00040000 "efs"
/ # cd /efs
cd /efs
/efs # ls -al
ls -al
drwxrwxr-x    1 1001     1001         4096 Aug  2  2011 .
drwxr-xr-x   15 0        0               0 Jan  1 02:08 ..
-rw-------    1 1001     1001            1 Apr 27  2011 .nv_state
drwxrwxrwx    1 0        0            4096 Aug  2  2011 efs
drwx------    1 0        0            4096 Jan  1 02:20 lost+found
-rw-rw-rw-    1 1001     1001            2 Aug  2  2011 uart_path
/efs #